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Which P&r tool will get better result?

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Encounter is the best tool for PNR
 

Magma is a very good tool .
Reasons >>>>>>>>>
Magma uses the early silicon performance which gives the timing estimation prior to detail p &r .
It can predict in the early design flow whether the design will meet the timing in the final layout or not by early silicon performance.
It uses the super cell approach and gain based synthesis in synthesis to reduce the runtime and give the best size of the cell that will result in best area .
It uses the unified data model for whole the flow to reduce the data conversion between the stages in the design flow this will result in reduced memory usage.
 

I feel for placement and pre-cts ICC is good tool
andCTS & routing (nano-route)
 

For better run time, Magma is good. But the problem with Magma is its results are not of sign-off quality.
 

at end of day .. we need QoR only.. not runtime..
My advice is ICC+nanoroute will help u lot to meet the target QoR..
 

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